#
# start = int(input('输入start'))
# end = int(input('输入end'))
# total = 0
# even = 0
# while start <= end:
#     if even%2==0:
#         total +=start
#     else:
#         total -=start
#     even +=1
#     start +=1
#     print(total)
# print(total)

# while True:
#     content = input('请输入内容（q退出）')
#     if content == 'q':
#         break
#     print('发送内容', content)
#

""""
i=1
while i <=10:
    if i==4:
        i+=1
        continue
    print(i)
    i+=1
"""

s = '你好，世界！'
for i in s:
    print(i)

"""
range(n):从O数到n.不包含n
range(m,n):从m数到n,不包含n
range(m,n,s):从m数到n,不包含n,每次的间隔是s
"""
# 遍历从3到9的数字
for i in range(3,10,2):

    print(i)


pass #占位符

